Home / 814,442.60-1,221,663.90-562,500.20

Finding the Fourth Proportional to 814,442.60, 1,221,663.90 and 562,500.20

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Solution

The fourth proportional to 814,442.60, 1,221,663.90 and 562,500.20 is: 843,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,442.60 : 1,221,663.90 = 562,500.20 : x
  2. Step 2: Convert to fraction form
    814,442.60/1,221,663.90 = 562,500.20/x
  3. Step 3: Cross multiply
    814,442.60x = 1,221,663.90 × 562,500.20
  4. Step 4: Simplify right side
    814,442.60x = 687,186,188,082.78
  5. Step 5: Solve for x
    x = 687,186,188,082.78/814,442.60
  6. Step 6: Final answer
    x = 843,750.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.